Valve for tires.



PATBNTED APR. 28, 1908.

J; a. DUNN. VALVE FOR TIRES. APPLICATION FILED SEPT '13, 1806.

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STATES ATTNT ()F 3 JOHN sAMU ELbuNN, orivm'cn'uua's,'1 niANA ,i'AssIeroaoi oNE-riiiau 0 sane-Ear.

T pneumatic tires and means for 'ILANGDON, JRJQOF vI cENNEs, INDIANA,AND ONE-THIRD TO LEONARD c. LANGDON,

"OF OAK PARK," ILLINOIS.

To all whomit may concern:

hereby declare the following to be a full;- clear, and exact descriptionof the invention,

such as will. enable others skilled in-the art to which it appertains tomake-and use the same. This invention ha 3- relation to valves forsecuring the same to the tires. 4

It is the object of the a thoroughly efficient valve for use on allclasses or kinds of pneumatic tires whether used on bicycles,automoblles, or vehicles or machines of other kinds, the construction ofwhich will be simple and its manufacture of little cost.

It is further proposed to produce a valve of the kind mentioned thatwill not tear out should the tire creep on the rim, and'a valve alsothat maybe readily'used and be possessed of other advantages, as'willhereinafterappear. I

The nature of the invention 15 clearly portrayed in theannexed drawings,forming a part of this specification, in view of which the improvementswill first be described in detail with respect to its construction andmode of operation, and then be pointed out in the sub oined claims.

Of the said drawings Figure 1 is a plan. Fig. 2 is a bottom view'of thevalve proper. Fig. 3 is vertical central sectional view.

Fig; 4 1s a side view'of the plug. Fig. '5is a sectional view of theplug and bushing drawn to an enlarged scale. Fig. 6 is a sectional view,indicating a position the invention may,

take in the outer casing of a-pneumatic tire. Silnilar numeralsofreferencedesignate the same parts or 'l?eatures,.as the casemay be,

wherever they occur. I

" In the drawings 10 designates a disk of rubber, vulcanized toa desireddegree the upper surface 11' of which is of. substantially convex orinclined form,sloping from its center to its edges, and the lower face12 of which is substantially flat. Ahole 15 formed through the centerofthe disk 10 and a neck 9 for the rece tion of ametallic bushin '13secured. in the ole'in anysuitable way, t e' bushm ex- I tendinEt'ltSQUtBIL enda little beyond the outer ace ofjjneck: 9,and-surrounding this Y Specification of Letters Patent. Applicationfiled September 13, 1906. I Serial No. 334,475.

' secured tothe bottom 12-of the disk 10,tlie

I vALvE FOR TIRES.

Patented April 28, 1908i outer extension is ametal band 13 shrunk orotherwise secured onthe bushing; The interior of the bushing isscrew-threaded in such form and manner. as to have pump-tubesof standardor universal form and construction applied thereto.

he bushing is provided near its inner end with an offset 14, reducingthe-diameter of.

the opening 15 into the tire. A plug 16 is provided having the exteriorof its body portion screw-threaded and fitted as to size, and

the saidplug is provided on its bottom with a ring of rubber 17 or othermeans of similar invention to produce character toserve'as a-plackingwhen the plug is screwed home on .t e offset 14. The plu lo'mayfurthermore be provided. centrally'on its under side with a projection,17,

adapted to enter the hole 15- in the bottom of the bushing when the plugis screwed into place in the bushin I The bottom 12 oi the disk 10 has adisk of rubber 19 secured thereto. The said rubber disk has a strip cutout, as at 20,"for twothird'sorthree-fourths'of the way around itscenter 21 so that whenthe disk of rubber is central portion will alittle more than cover the bottom of. the bushing .13 and act as aclack-valve to the opening 15'into the tire.

The extension or teat 1-7 on the bottom of the plug-116 isnot'essential, though in some cases it is useful. 'Itwill not be made.long enough to interfere with the functions of the valve 21 closing-thehole or port 15. i The disk ll may be secured in theouter casing 24 sothat the upper or outerend of the bushingl3 therein w' be flush ornearly .fiu'sh with: the outer face of the tire, while the inner face ofthe disk 11 and rubber'disk 19 will be. insnfewthe outer casingand haveits lower surface-covered by the inside tube 25.

'Any other efficient way of securing the disk 11 to the outside casingand inner tube-will answer as well.

-From the fact that the val've' and its means 100 of. attachment areentirely included within the tire, and so far as they extendiorrnractically a part of the tire,'they move wit the latter so that shouldthe tire creepon the rim.

of the wheel that action will not result in-the 105 tearing out of thetire.

The opening of the valve. being on the pe-- riphery of the valve it ismade easy to apply a pump for. inflating the tire. Furthermore,

the extension of the bushing to the face or 110 .eny degree.

nearly jtothe face of: the tire does not effect. I

e resiliency or riding qualities of the tire to Wha is claimed is 1. Avalve forpneuinatic tires consisting of a disk of hard rubber securedbetween the j outer and inner tubes, providedcentrelly with lu ada i ihesaid the op end.

an outwardly. extendedhollow neck, having en interiorly screw-threadedbushing secured in said-hollow neck and extending to sub stantially theI :2. A-Valye forpneumatic tires consisting J of a. disk having itsupper side or face, sloping .2 0

outward to its edge and a flatlower face se- I the tire, said to controlcured between the outer and inner tubes of provided centrally with anoutwardly extendedhollow neck, an

disk being interiorly screw-threaded bushing secured in said hollow neckand extending outwardly I protecting ring outer end of the bushingbeyond the hollow neck, a surrounding the projecting beyond the hollowneck and having an inturned offset near its inner end, a plug adapted tobe screwed into and out of said bushing, a tween the inner end ofoffset, and a flap valve to control the opening of the bushing at itsinner end.

In testimony whereof, I my signature, 35 in presence 01 two Witnesses.

JOHN SAMUEL DUNN. Witnesses:

JOHN DOWNEY, HARRY, R; LEWIS,

packing ring inter osed bethe plug one the said v

